﻿using System;

namespace ConsoleInput
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("1 + 1 = " + 1 + 1); //1 + 1 = 11
            Console.WriteLine("1 + 1 = " + (1 + 1)); //1 + 1 = 2
            Console.WriteLine(1 + 1 + " = 2"); //2 = 2

            //string s = "1";
            string s = Console.ReadLine();
            int x = int.Parse(s);

            Console.WriteLine(x * 2);
        }
    }
}
